/**
 * 农历1900-2100的润大小信息表
 * Hex
 */
export const lunarInfo =
  [
    0x04bd8, 0x04ae0, 0x0a570, 0x054d5, 0x0d260, 0x0d950, 0x16554, 0x056a0, 0x09ad0, 0x055d2, // 1900-1909
    0x04ae0, 0x0a5b6, 0x0a4d0, 0x0d250, 0x1d255, 0x0b540, 0x0d6a0, 0x0ada2, 0x095b0, 0x14977, // 1910-1919
    0x04970, 0x0a4b0, 0x0b4b5, 0x06a50, 0x06d40, 0x1ab54, 0x02b60, 0x09570, 0x052f2, 0x04970, // 1920-1929
    0x06566, 0x0d4a0, 0x0ea50, 0x06e95, 0x05ad0, 0x02b60, 0x186e3, 0x092e0, 0x1c8d7, 0x0c950, // 1930-1939
    0x0d4a0, 0x1d8a6, 0x0b550, 0x056a0, 0x1a5b4, 0x025d0, 0x092d0, 0x0d2b2, 0x0a950, 0x0b557, // 1940-1949
    0x06ca0, 0x0b550, 0x15355, 0x04da0, 0x0a5b0, 0x14573, 0x052b0, 0x0a9a8, 0x0e950, 0x06aa0, // 1950-1959
    0x0aea6, 0x0ab50, 0x04b60, 0x0aae4, 0x0a570, 0x05260, 0x0f263, 0x0d950, 0x05b57, 0x056a0, // 1960-1969
    0x096d0, 0x04dd5, 0x04ad0, 0x0a4d0, 0x0d4d4, 0x0d250, 0x0d558, 0x0b540, 0x0b6a0, 0x195a6, // 1970-1979
    0x095b0, 0x049b0, 0x0a974, 0x0a4b0, 0x0b27a, 0x06a50, 0x06d40, 0x0af46, 0x0ab60, 0x09570, // 1980-1989
    0x04af5, 0x04970, 0x064b0, 0x074a3, 0x0ea50, 0x06b58, 0x055c0, 0x0ab60, 0x096d5, 0x092e0, // 1990-1999
    0x0c960, 0x0d954, 0x0d4a0, 0x0da50, 0x07552, 0x056a0, 0x0abb7, 0x025d0, 0x092d0, 0x0cab5, // 2000-2009
    0x0a950, 0x0b4a0, 0x0baa4, 0x0ad50, 0x055d9, 0x04ba0, 0x0a5b0, 0x15176, 0x052b0, 0x0a930, // 2010-2019
    0x07954, 0x06aa0, 0x0ad50, 0x05b52, 0x04b60, 0x0a6e6, 0x0a4e0, 0x0d260, 0x0ea65, 0x0d530, // 2020-2029
    0x05aa0, 0x076a3, 0x096d0, 0x04afb, 0x04ad0, 0x0a4d0, 0x1d0b6, 0x0d250, 0x0d520, 0x0dd45, // 2030-2039
    0x0b5a0, 0x056d0, 0x055b2, 0x049b0, 0x0a577, 0x0a4b0, 0x0aa50, 0x1b255, 0x06d20, 0x0ada0, // 2040-2049
    0x14b63, 0x09370, 0x049f8, 0x04970, 0x064b0, 0x168a6, 0x0ea50, 0x06b20, 0x1a6c4, 0x0aae0, // 2050-2059
    0x0a2e0, 0x0d2e3, 0x0c960, 0x0d557, 0x0d4a0, 0x0da50, 0x05d55, 0x056a0, 0x0a6d0, 0x055d4, // 2060-2069
    0x052d0, 0x0a9b8, 0x0a950, 0x0b4a0, 0x0b6a6, 0x0ad50, 0x055a0, 0x0aba4, 0x0a5b0, 0x052b0, // 2070-2079
    0x0b273, 0x06930, 0x07337, 0x06aa0, 0x0ad50, 0x14b55, 0x04b60, 0x0a570, 0x054e4, 0x0d160, // 2080-2089
    0x0e968, 0x0d520, 0x0daa0, 0x16aa6, 0x056d0, 0x04ae0, 0x0a9d4, 0x0a2d0, 0x0d150, 0x0f252, // 2090-2099
    0x0d520
  ]

/**
 * 1900-2100各年的24节气日期速查表
 * 0x string For splice
 */
export const sTermInfo =
  [
    '9778397bd097c36b0b6fc9274c91aa', '97b6b97bd19801ec9210c965cc920e', '97bcf97c3598082c95f8c965cc920f',
    '97bd0b06bdb0722c965ce1cfcc920f', 'b027097bd097c36b0b6fc9274c91aa', '97b6b97bd19801ec9210c965cc920e',
    '97bcf97c359801ec95f8c965cc920f', '97bd0b06bdb0722c965ce1cfcc920f', 'b027097bd097c36b0b6fc9274c91aa',
    '97b6b97bd19801ec9210c965cc920e', '97bcf97c359801ec95f8c965cc920f', '97bd0b06bdb0722c965ce1cfcc920f',
    'b027097bd097c36b0b6fc9274c91aa', '9778397bd19801ec9210c965cc920e', '97b6b97bd19801ec95f8c965cc920f',
    '97bd09801d98082c95f8e1cfcc920f', '97bd097bd097c36b0b6fc9210c8dc2', '9778397bd197c36c9210c9274c91aa',
    '97b6b97bd19801ec95f8c965cc920e', '97bd09801d98082c95f8e1cfcc920f', '97bd097bd097c36b0b6fc9210c8dc2',
    '9778397bd097c36c9210c9274c91aa', '97b6b97bd19801ec95f8c965cc920e', '97bcf97c3598082c95f8e1cfcc920f',
    '97bd097bd097c36b0b6fc9210c8dc2', '9778397bd097c36c9210c9274c91aa', '97b6b97bd19801ec9210c965cc920e',
    '97bcf97c3598082c95f8c965cc920f', '97bd097bd097c35b0b6fc920fb0722', '9778397bd097c36b0b6fc9274c91aa',
    '97b6b97bd19801ec9210c965cc920e', '97bcf97c3598082c95f8c965cc920f', '97bd097bd097c35b0b6fc920fb0722',
    '9778397bd097c36b0b6fc9274c91aa', '97b6b97bd19801ec9210c965cc920e', '97bcf97c359801ec95f8c965cc920f',
    '97bd097bd097c35b0b6fc920fb0722', '9778397bd097c36b0b6fc9274c91aa', '97b6b97bd19801ec9210c965cc920e',
    '97bcf97c359801ec95f8c965cc920f', '97bd097bd097c35b0b6fc920fb0722', '9778397bd097c36b0b6fc9274c91aa',
    '97b6b97bd19801ec9210c965cc920e', '97bcf97c359801ec95f8c965cc920f', '97bd097bd07f595b0b6fc920fb0722',
    '9778397bd097c36b0b6fc9210c8dc2', '9778397bd19801ec9210c9274c920e', '97b6b97bd19801ec95f8c965cc920f',
    '97bd07f5307f595b0b0bc920fb0722', '7f0e397bd097c36b0b6fc9210c8dc2', '9778397bd097c36c9210c9274c920e',
    '97b6b97bd19801ec95f8c965cc920f', '97bd07f5307f595b0b0bc920fb0722', '7f0e397bd097c36b0b6fc9210c8dc2',
    '9778397bd097c36c9210c9274c91aa', '97b6b97bd19801ec9210c965cc920e', '97bd07f1487f595b0b0bc920fb0722',
    '7f0e397bd097c36b0b6fc9210c8dc2', '9778397bd097c36b0b6fc9274c91aa', '97b6b97bd19801ec9210c965cc920e',
    '97bcf7f1487f595b0b0bb0b6fb0722', '7f0e397bd097c35b0b6fc920fb0722', '9778397bd097c36b0b6fc9274c91aa',
    '97b6b97bd19801ec9210c965cc920e', '97bcf7f1487f595b0b0bb0b6fb0722', '7f0e397bd097c35b0b6fc920fb0722',
    '9778397bd097c36b0b6fc9274c91aa', '97b6b97bd19801ec9210c965cc920e', '97bcf7f1487f531b0b0bb0b6fb0722',
    '7f0e397bd097c35b0b6fc920fb0722', '9778397bd097c36b0b6fc9274c91aa', '97b6b97bd19801ec9210c965cc920e',
    '97bcf7f1487f531b0b0bb0b6fb0722', '7f0e397bd07f595b0b6fc920fb0722', '9778397bd097c36b0b6fc9274c91aa',
    '97b6b97bd19801ec9210c9274c920e', '97bcf7f0e47f531b0b0bb0b6fb0722', '7f0e397bd07f595b0b0bc920fb0722',
    '9778397bd097c36b0b6fc9210c91aa', '97b6b97bd197c36c9210c9274c920e', '97bcf7f0e47f531b0b0bb0b6fb0722',
    '7f0e397bd07f595b0b0bc920fb0722', '9778397bd097c36b0b6fc9210c8dc2', '9778397bd097c36c9210c9274c920e',
    '97b6b7f0e47f531b0723b0b6fb0722', '7f0e37f5307f595b0b0bc920fb0722', '7f0e397bd097c36b0b6fc9210c8dc2',
    '9778397bd097c36b0b70c9274c91aa', '97b6b7f0e47f531b0723b0b6fb0721', '7f0e37f1487f595b0b0bb0b6fb0722',
    '7f0e397bd097c35b0b6fc9210c8dc2', '9778397bd097c36b0b6fc9274c91aa', '97b6b7f0e47f531b0723b0b6fb0721',
    '7f0e27f1487f595b0b0bb0b6fb0722', '7f0e397bd097c35b0b6fc920fb0722', '9778397bd097c36b0b6fc9274c91aa',
    '97b6b7f0e47f531b0723b0b6fb0721', '7f0e27f1487f531b0b0bb0b6fb0722', '7f0e397bd097c35b0b6fc920fb0722',
    '9778397bd097c36b0b6fc9274c91aa', '97b6b7f0e47f531b0723b0b6fb0721', '7f0e27f1487f531b0b0bb0b6fb0722',
    '7f0e397bd097c35b0b6fc920fb0722', '9778397bd097c36b0b6fc9274c91aa', '97b6b7f0e47f531b0723b0b6fb0721',
    '7f0e27f1487f531b0b0bb0b6fb0722', '7f0e397bd07f595b0b0bc920fb0722', '9778397bd097c36b0b6fc9274c91aa',
    '97b6b7f0e47f531b0723b0787b0721', '7f0e27f0e47f531b0b0bb0b6fb0722', '7f0e397bd07f595b0b0bc920fb0722',
    '9778397bd097c36b0b6fc9210c91aa', '97b6b7f0e47f149b0723b0787b0721', '7f0e27f0e47f531b0723b0b6fb0722',
    '7f0e397bd07f595b0b0bc920fb0722', '9778397bd097c36b0b6fc9210c8dc2', '977837f0e37f149b0723b0787b0721',
    '7f07e7f0e47f531b0723b0b6fb0722', '7f0e37f5307f595b0b0bc920fb0722', '7f0e397bd097c35b0b6fc9210c8dc2',
    '977837f0e37f14998082b0787b0721', '7f07e7f0e47f531b0723b0b6fb0721', '7f0e37f1487f595b0b0bb0b6fb0722',
    '7f0e397bd097c35b0b6fc9210c8dc2', '977837f0e37f14998082b0787b06bd', '7f07e7f0e47f531b0723b0b6fb0721',
    '7f0e27f1487f531b0b0bb0b6fb0722', '7f0e397bd097c35b0b6fc920fb0722', '977837f0e37f14998082b0787b06bd',
    '7f07e7f0e47f531b0723b0b6fb0721', '7f0e27f1487f531b0b0bb0b6fb0722', '7f0e397bd097c35b0b6fc920fb0722',
    '977837f0e37f14998082b0787b06bd', '7f07e7f0e47f531b0723b0b6fb0721', '7f0e27f1487f531b0b0bb0b6fb0722',
    '7f0e397bd07f595b0b0bc920fb0722', '977837f0e37f14998082b0787b06bd', '7f07e7f0e47f531b0723b0b6fb0721',
    '7f0e27f1487f531b0b0bb0b6fb0722', '7f0e397bd07f595b0b0bc920fb0722', '977837f0e37f14998082b0787b06bd',
    '7f07e7f0e47f149b0723b0787b0721', '7f0e27f0e47f531b0b0bb0b6fb0722', '7f0e397bd07f595b0b0bc920fb0722',
    '977837f0e37f14998082b0723b06bd', '7f07e7f0e37f149b0723b0787b0721', '7f0e27f0e47f531b0723b0b6fb0722',
    '7f0e397bd07f595b0b0bc920fb0722', '977837f0e37f14898082b0723b02d5', '7ec967f0e37f14998082b0787b0721',
    '7f07e7f0e47f531b0723b0b6fb0722', '7f0e37f1487f595b0b0bb0b6fb0722', '7f0e37f0e37f14898082b0723b02d5',
    '7ec967f0e37f14998082b0787b0721', '7f07e7f0e47f531b0723b0b6fb0722', '7f0e37f1487f531b0b0bb0b6fb0722',
    '7f0e37f0e37f14898082b0723b02d5', '7ec967f0e37f14998082b0787b06bd', '7f07e7f0e47f531b0723b0b6fb0721',
    '7f0e37f1487f531b0b0bb0b6fb0722', '7f0e37f0e37f14898082b072297c35', '7ec967f0e37f14998082b0787b06bd',
    '7f07e7f0e47f531b0723b0b6fb0721', '7f0e27f1487f531b0b0bb0b6fb0722', '7f0e37f0e37f14898082b072297c35',
    '7ec967f0e37f14998082b0787b06bd', '7f07e7f0e47f531b0723b0b6fb0721', '7f0e27f1487f531b0b0bb0b6fb0722',
    '7f0e37f0e366aa89801eb072297c35', '7ec967f0e37f14998082b0787b06bd', '7f07e7f0e47f149b0723b0787b0721',
    '7f0e27f1487f531b0b0bb0b6fb0722', '7f0e37f0e366aa89801eb072297c35', '7ec967f0e37f14998082b0723b06bd',
    '7f07e7f0e47f149b0723b0787b0721', '7f0e27f0e47f531b0723b0b6fb0722', '7f0e37f0e366aa89801eb072297c35',
    '7ec967f0e37f14998082b0723b06bd', '7f07e7f0e37f14998083b0787b0721', '7f0e27f0e47f531b0723b0b6fb0722',
    '7f0e37f0e366aa89801eb072297c35', '7ec967f0e37f14898082b0723b02d5', '7f07e7f0e37f14998082b0787b0721',
    '7f07e7f0e47f531b0723b0b6fb0722', '7f0e36665b66aa89801e9808297c35', '665f67f0e37f14898082b0723b02d5',
    '7ec967f0e37f14998082b0787b0721', '7f07e7f0e47f531b0723b0b6fb0722', '7f0e36665b66a449801e9808297c35',
    '665f67f0e37f14898082b0723b02d5', '7ec967f0e37f14998082b0787b06bd', '7f07e7f0e47f531b0723b0b6fb0721',
    '7f0e36665b66a449801e9808297c35', '665f67f0e37f14898082b072297c35', '7ec967f0e37f14998082b0787b06bd',
    '7f07e7f0e47f531b0723b0b6fb0721', '7f0e26665b66a449801e9808297c35', '665f67f0e37f1489801eb072297c35',
    '7ec967f0e37f14998082b0787b06bd', '7f07e7f0e47f531b0723b0b6fb0721', '7f0e27f1487f531b0b0bb0b6fb0722'
  ]

/**
 * 公历每个月份的天数普通表
 */
export const solarMonth = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]

/**
 * 天干地支之天干速查表
 * ['甲','乙','丙','丁','戊','己','庚','辛','壬','癸']
 */
export const gan = ['\u7532', '\u4e59', '\u4e19', '\u4e01', '\u620a', '\u5df1', '\u5e9a', '\u8f9b', '\u58ec', '\u7678']

/**
 * 天干地支之地支速查表
 * ['子','丑','寅','卯','辰','巳','午','未','申','酉','戌','亥']
 */
export const zhi = ['\u5b50', '\u4e11', '\u5bc5', '\u536f', '\u8fb0', '\u5df3', '\u5348', '\u672a', '\u7533', '\u9149', '\u620c', '\u4ea5']

/**
 * 天干地支之地支速查表<=>生肖
 * ['鼠','牛','虎','兔','龙','蛇','马','羊','猴','鸡','狗','猪']
 */
export const animals = ['\u9f20', '\u725b', '\u864e', '\u5154', '\u9f99', '\u86c7', '\u9a6c', '\u7f8a', '\u7334', '\u9e21', '\u72d7', '\u732a']

/**
 * 24节气速查表
 * ['小寒','大寒','立春','雨水','惊蛰','春分','清明','谷雨','立夏','小满','芒种','夏至','小暑','大暑','立秋','处暑','白露','秋分','寒露','霜降','立冬','小雪','大雪','冬至']
 */
export const solarTerm = [
  '\u5c0f\u5bd2', '\u5927\u5bd2', '\u7acb\u6625', '\u96e8\u6c34', '\u60ca\u86f0',
  '\u6625\u5206', '\u6e05\u660e', '\u8c37\u96e8', '\u7acb\u590f', '\u5c0f\u6ee1',
  '\u8292\u79cd', '\u590f\u81f3', '\u5c0f\u6691', '\u5927\u6691', '\u7acb\u79cb',
  '\u5904\u6691', '\u767d\u9732', '\u79cb\u5206', '\u5bd2\u9732', '\u971c\u964d',
  '\u7acb\u51ac', '\u5c0f\u96ea', '\u5927\u96ea', '\u51ac\u81f3'
]

/**
 * 数字转中文速查表
 * ['日','一','二','三','四','五','六','七','八','九','十']
 */
export const nStr1 = ['\u65e5', '\u4e00', '\u4e8c', '\u4e09', '\u56db', '\u4e94', '\u516d', '\u4e03', '\u516b', '\u4e5d', '\u5341']

/**
 * 日期转农历称呼速查表
 * ['初','十','廿','卅']
 */
export const nStr2 = ['\u521d', '\u5341', '\u5eff', '\u5345']

/**
 * 月份转农历称呼速查表
 * ['正','一','二','三','四','五','六','七','八','九','十','冬','腊']
 */
export const nStr3 = ['\u6b63', '\u4e8c', '\u4e09', '\u56db', '\u4e94', '\u516d', '\u4e03', '\u516b', '\u4e5d', '\u5341', '\u51ac', '\u814a']

/**
 * 返回农历y年一整年的总天数
 * @param y Year
 * @return Number
 * @eg:var count = lYearDays(1987) ; // count=384
 */
export function lYearDays(y) {
  let i
  let sum = 348
  for (i = 0x8000; i > 0x8; i >>= 1) {
    sum += (lunarInfo[y - 1900] & i) ? 1 : 0
  }
  return sum + leapDays(y)
}

/**
 * 返回农历y年闰月是哪个月；若y年没有闰月 则返回0
 * @param y Year
 * @return Number (0-12)
 * @eg:var leapMonth = leapMonth(1987) // leapMonth=6
 */
export function leapMonth(y) {
  // 闰字编码 \u95f0
  return lunarInfo[y - 1900] & 0xf
}

/**
 * 返回农历y年闰月的天数 若该年没有闰月则返回0
 * @param y Year
 * @return Number (0、29、30)
 * @eg:var leapMonthDay = leapDays(1987) // leapMonthDay=29
 */
export function leapDays(y) {
  if (leapMonth(y)) {
    return ((lunarInfo[y - 1900] & 0x10000) ? 30 : 29)
  }
  return 0
}

/**
 * 返回农历y年m月（非闰月）的总天数，计算m为闰月时的天数请使用leapDays方法
 * @param y Year
 * @param m Month
 * @return Number (-1、29、30)
 * @eg:var monthDay = monthDays(1987,9) // MonthDay=29
 */
export function monthDays(y, m) {
  if (m > 12 || m < 1) return -1 // 月份参数从1至12，参数错误返回-1
  return (lunarInfo[y - 1900] & (0x10000 >> m)) ? 30 : 29
}

/**
 * 返回公历y年m月的天数
 * @param y Year
 * @param m Month
 * @return Number (-1、28、29、30、31)
 * @eg:var solarMonthDay = solarDays(1987) // solarMonthDay=30
 */
export function solarDays(y, m) {
  if (m > 12 || m < 1) return -1 // 若参数错误 返回-1
  let ms = m - 1
  if (ms === 1) {
    // 2月份的闰平规律测算后确认返回28或29
    return (y % 4 === 0 && y % 100 !== 0) || (y % 400 === 0) ? 29 : 28
  } else {
    return solarMonth[ms]
  }
}

/**
 * 农历年份转换为干支纪年
 * @param lYear 农历年的年份数
 * @return string
 */
export function toGanZhiYear(lYear) {
  let ganKey = (lYear - 3) % 10
  let zhiKey = (lYear - 3) % 12
  if (ganKey === 0) ganKey = 10 // 如果余数为0则为最后一个天干
  if (zhiKey === 0) zhiKey = 12 // 如果余数为0则为最后一个地支
  return gan[ganKey - 1] + zhi[zhiKey - 1]
}

/**
 * 公历月、日判断所属星座
 * @param cMonth month
 * @param cDay day
 * @return string
 */
export function toAstro(cMonth, cDay) {
  const s = '\u9b54\u7faf\u6c34\u74f6\u53cc\u9c7c\u767d\u7f8a\u91d1\u725b\u53cc\u5b50\u5de8\u87f9\u72ee\u5b50\u5904\u5973\u5929\u79e4\u5929\u874e\u5c04\u624b\u9b54\u7faf'
  const arr = [20, 19, 21, 21, 21, 22, 23, 23, 23, 23, 22, 22]
  return s.substr(cMonth * 2 - (cDay < arr[cMonth - 1] ? 2 : 0), 2) + '\u5ea7' // 座
}

/**
 * 传入offset偏移量返回干支
 * @param offset 相对甲子的偏移量
 * @return string
 */
export function toGanZhi(offset) {
  return gan[offset % 10] + zhi[offset % 12]
}

/**
 * 传入公历(!)y年获得该年第n个节气的公历日期
 * @param y 公历年(1900-2100)
 * @param n 二十四节气中的第几个节气(1~24),从n=1(小寒)算起
 * @return number
 * @eg:var _24 = getTerm(1987, 3) //_24 = 4 意即1987年2月4日立春
 */
export function getTerm(y, n) {
  if (y < 1900 || y > 2100) return -1
  if (n < 1 || n > 24) return -1
  let _table = sTermInfo[y - 1900]
  let _info = [
    parseInt('0x' + _table.substr(0, 5)).toString(),
    parseInt('0x' + _table.substr(5, 5)).toString(),
    parseInt('0x' + _table.substr(10, 5)).toString(),
    parseInt('0x' + _table.substr(15, 5)).toString(),
    parseInt('0x' + _table.substr(20, 5)).toString(),
    parseInt('0x' + _table.substr(25, 5)).toString()
  ]
  let _calDay = [
    _info[0].substr(0, 1),
    _info[0].substr(1, 2),
    _info[0].substr(3, 1),
    _info[0].substr(4, 2),
    _info[1].substr(0, 1),
    _info[1].substr(1, 2),
    _info[1].substr(3, 1),
    _info[1].substr(4, 2),
    _info[2].substr(0, 1),
    _info[2].substr(1, 2),
    _info[2].substr(3, 1),
    _info[2].substr(4, 2),
    _info[3].substr(0, 1),
    _info[3].substr(1, 2),
    _info[3].substr(3, 1),
    _info[3].substr(4, 2),
    _info[4].substr(0, 1),
    _info[4].substr(1, 2),
    _info[4].substr(3, 1),
    _info[4].substr(4, 2),
    _info[5].substr(0, 1),
    _info[5].substr(1, 2),
    _info[5].substr(3, 1),
    _info[5].substr(4, 2)
  ]
  return parseInt(_calDay[n - 1])
}

/**
 * 传入农历数字月份返回汉语通俗表示法
 * @param m month
 * @return string
 * @eg:var cnMonth = toChinaMonth(12) // cnMonth = '腊月'
 */
export function toChinaMonth(m) {
  if (m > 12 || m < 1) return -1 // 若参数错误 返回-1
  let s = nStr3[m - 1]
  s += '\u6708' // 加上月字
  return s
}

/**
 * 传入农历日期数字返回汉字表示法
 * @param d day
 * @return string
 * @eg:var cnDay = toChinaDay(21) // cnMonth = '廿一'
 */
export function toChinaDay(d) {
  let s
  switch (d) {
    case 10:
      s = '\u521d\u5341'
      break
    case 20:
      s = '\u4e8c\u5341'
      break
    case 30:
      s = '\u4e09\u5341'
      break
    default :
      s = nStr2[Math.floor(d / 10)]
      s += nStr1[d % 10]
  }
  return s
}

/**
 * 年份转生肖,仅能大致转换 => 精确划分生肖分界线是“立春”
 * @param y year
 * @return string
 * @eg:var animal = getAnimal(1987) // animal='兔'
 */
export function getAnimal(y) {
  return animals[(y - 4) % 12]
}

/**
 * 传入阳历年月日获得详细的公历、农历object信息 <=>JSON
 * @param y  solar year
 * @param m  solar month
 * @param d  solar day
 * @return JSON object
 * @eg:console.log(solar2lunar(1987,11,01))
 * return {
 *   Animal: "兔",
 *   IDayCn: "初十",
 *   IMonthCn: "九月",
 *   Term: null,
 *   astro: "天蝎座",
 *   cDay: 1,
 *   cMonth: 11,
 *   cYear: 1987,
 *   gzDay: "甲寅",
 *   gzMonth: "庚戌",
 *   gzYear: "丁卯",
 *   isLeap: false,
 *   isTerm: false,
 *   isToday: false,
 *   lDay: 10,
 *   lMonth: 9,
 *   lYear: 1987,
 *   nWeek: 7,
 *   ncWeek: "星期日"
 *  }
 */
export function solar2lunar(y, m, d) {
  // 参数区间1900.1.31~2100.12.31
  if (y < 1900 || y > 2100) return -1 // 年份限定、上限
  if (y === 1900 && m === 1 && d < 31) return -1 // 下限
  let i
  let leap = 0
  let temp = 0
  let objDate = new Date()
  if (y) {
    objDate = new Date(y, parseInt(m) - 1, d)
  }
  y = objDate.getFullYear()
  m = objDate.getMonth() + 1
  d = objDate.getDate()
  let offset = (Date.UTC(y, m - 1, d) - Date.UTC(1900, 0, 31)) / 86400000
  for (i = 1900; i < 2101 && offset > 0; i++) {
    temp = lYearDays(i)
    offset -= temp
  }
  if (offset < 0) {
    offset += temp
    i--
  }
  let isTodayObj = new Date()
  let isToday = false
  if (isTodayObj.getFullYear() === y && isTodayObj.getMonth() + 1 === m && isTodayObj.getDate() === d) {
    isToday = true
  }
  // 星期几
  let nWeek = objDate.getDay()
  let cWeek = nStr1[nWeek]
  if (nWeek === 0) nWeek = 7 // 数字表示周几顺应天朝周一开始的惯例
  let year = i
  leap = leapMonth(i) // 闰哪个月
  let isLeap = false
  // 效验闰月
  for (i = 1; i < 13 && offset > 0; i++) {
    // 闰月
    if (leap > 0 && i === (leap + 1) && isLeap === false) {
      --i
      isLeap = true
      temp = leapDays(year) // 计算农历闰月天数
    } else {
      temp = monthDays(year, i) // 计算农历普通月天数
    }
    // 解除闰月
    if (isLeap === true && i === leap + 1) isLeap = false
    offset -= temp
  }
  if (offset === 0 && leap > 0 && i === leap + 1) {
    if (isLeap) {
      isLeap = false
    } else {
      isLeap = true
      --i
    }
  }
  if (offset < 0) {
    offset += temp
    --i
  }
  // 农历月
  let month = i
  // 农历日
  let day = offset + 1
  // 天干地支处理
  let sm = m - 1
  let gzY = toGanZhiYear(year)
  // 月柱 1900年1月小寒以前为 丙子月(60进制12)
  let firstNode = getTerm(year, (m * 2 - 1)) // 返回当月「节」为几日开始
  let secondNode = getTerm(year, (m * 2)) // 返回当月「节」为几日开始
  // 依据12节气修正干支月
  let gzM = toGanZhi((y - 1900) * 12 + m + 11)
  if (d >= firstNode) {
    gzM = toGanZhi((y - 1900) * 12 + m + 12)
  }
  // 传入的日期的节气与否
  let isTerm = false
  let Term = null
  if (firstNode === d) {
    isTerm = true
    Term = solarTerm[m * 2 - 2]
  }
  if (secondNode === d) {
    isTerm = true
    Term = solarTerm[m * 2 - 1]
  }
  // 日柱 当月一日与 1900/1/1 相差天数
  let dayCyclical = Date.UTC(y, sm, 1, 0, 0, 0, 0) / 86400000 + 25567 + 10
  let gzD = toGanZhi(dayCyclical + d - 1)
  // 该日期所属的星座
  let astro = toAstro(m, d)
  return {
    lYear: year,
    lMonth: month,
    lDay: day,
    animal: getAnimal(year),
    IMonthCn: (isLeap ? '\u95f0' : '') + toChinaMonth(month),
    IDayCn: toChinaDay(day),
    cYear: y,
    cMonth: m,
    cDay: d,
    gzYear: gzY,
    gzMonth: gzM,
    gzDay: gzD,
    isToday,
    isLeap,
    nWeek,
    ncWeek: '\u661f\u671f' + cWeek,
    isTerm,
    Term,
    astro
  }
}

/**
 * 传入农历年月日以及传入的月份是否闰月获得详细的公历、农历object信息 <=>JSON
 * @param y  lunar year
 * @param m  lunar month
 * @param d  lunar day
 * @param isLeapMonth [如果是农历闰月第四个参数赋值true即可]
 * @return JSON object
 * @eg:console.log(lunar2solar(1987,9,10))
 * return {
 *   IDayCn: "初十",
 *   IMonthCn: "九月",
 *   Term: null,
 *   animal: "兔",
 *   astro: "天蝎座",
 *   cDay: 1,
 *   cMonth: 11,
 *   cYear: 1987,
 *   gzDay: "甲寅",
 *   gzMonth: "庚戌",
 *   gzYear: "丁卯",
 *   isLeap: false,
 *   isTerm: false,
 *   isToday: false,
 *   lDay: 10,
 *   lMonth: 9,
 *   lYear: 1987,
 *   nWeek: 7,
 *   ncWeek: "星期日"
 * }
 */
export function lunar2solar(y, m, d, isLeapMonth) {
  if ((y === 2100 && m === 12 && d > 1) || (y === 1900 && m === 1 && d < 31)) return -1 // 超出了最大极限值
  isLeapMonth = !!isLeapMonth
  let leapMonths = leapMonth(y)
  // 传参要求计算该闰月公历 但该年得出的闰月与传参的月份并不同
  if (isLeapMonth && leapMonths !== m) return -1
  let day = monthDays(y, m)
  let _day = day
  // bugFix 2016-9-25
  // if month is leap, _day use leapDays method
  if (isLeapMonth) {
    _day = leapDays(y)
  }
  if (y < 1900 || y > 2100 || d > _day) return -1 // 参数合法性效验
  // 计算农历的时间差
  let offset = 0
  for (let i = 1900; i < y; i++) {
    offset += lYearDays(i)
  }
  let leap = 0
  let isAdd = false
  for (let i = 1; i < m; i++) {
    leap = leapMonth(y)
    if (!isAdd) {
      // 处理闰月
      if (leap <= i && leap > 0) {
        offset += leapDays(y)
        isAdd = true
      }
    }
    offset += monthDays(y, i)
  }
  // 转换闰月农历 需补充该年闰月的前一个月的时差
  if (isLeapMonth) offset += day
  // 1900年农历正月一日的公历时间为1900年1月30日0时0分0秒(该时间也是本农历的最开始起始点)
  let stamp = Date.UTC(1900, 1, 30, 0, 0, 0)
  let calObj = new Date((offset + d - 31) * 86400000 + stamp)
  let cY = calObj.getUTCFullYear()
  let cM = calObj.getUTCMonth() + 1
  let cD = calObj.getUTCDate()
  return solar2lunar(cY, cM, cD)
}

// console.log(utils.lYearDays(1987))
// console.log(utils.leapMonth(1987))
// console.log(utils.leapDays(1987))
// console.log(utils.monthDays(1987, 1))
// console.log(utils.solarDays(2016, 2))
// console.log(utils.toGanZhiYear(2018))
// console.log(utils.toAstro(6, 14))
// console.log(utils.toGanZhi(2))
// console.log(utils.getTerm(1987, 3))
// console.log(utils.toChinaMonth(1))
// console.log(utils.toChinaDay(9))
// console.log(utils.getAnimal(2017))
// console.log(utils.solar2lunar(1987, 11, 1))
// console.log(utils.lunar2solar(1993, 1, 8))
